This guy is pretty sweet! The armor layering in the chest looks awesome, and the system integration is smooth as well.
The disc on his chest sticks out a little too far IMO, and the chestplates on his legs look a little bit off. His back is pretty well covered but a little messy, and I feel that his feet might need to be built up a bit more since they are pretty hollow between the ankle and the CCBS shell.
Overall, though, this guy is fantastic and I love his design.